Forget the gym: A 30-second test may be one of the best indicators of longevity

A 30-second chair stand test, which measures how many times a person can stand up from a seated position in half a minute, is used by researchers and clinicians to assess lower body strength and fall risk. The test involves sitting in a chair and rising to a full stand repeatedly without using hands, with results compared to age and sex-specific benchmarks. Certified trainers recommend exercises including squats, lunges, and leg presses to improve performance on the test and lower body strength generally.

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